Caster cup



FIG. 1 is an isometric view of a caster cup in accordance with the present invention;

FIG. 2 is an end view of the caster cup of FIG. 1;

FIG. 3 is a side elevational view of the caster cup of FIG. 1;

FIG. 4 is a top plan view of the caster cup of FIG. 1; and,

FIG. 5 is a bottom plan view of the caster cup of FIG. 1. 

The ornamental design for a caster cup, as shown and described. 